Space & Satellites Flashcards
What is weight?
Weight is due to the pull of gravity. It is a force and it is calculated in Newtons. The equation to find the weight of somthign is mass x gravity.
What is mass?
Mass never changes, we use Kg for it. The mass of an object is how much matter it has.
The planet has a _____ mass, there is more force afting on it. But it also _____ as you go away from the sun.
The planet mas a bigger mass, there is more force acting on ig. But it also decreases as you go away from the sun.
Day
24 hours, the time it takes the earth to spin in its axis
Moon
A large lump of rock orbiting around a planet
Orbit
The path that a planet takes around the sun
Sun
The star that earth and other planets orbit
Year
The length of time it takes a planet to go around the sun
Solar system
A star with planets and other objects orbiting it
Asteroid
A small lump of rock arbiting around the sun
Constellation
A pattern of stars
Galaxies
Billions of stars geouped together
Milky way
The galaxy that our solar system is in
Star
A huge ball of gas that gives out heat and light energy
Universe
All the galaxies and the space between them